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Laurent Hinoul
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Recent Snippets See all snippets by lauhin

public by  5371  3  7  1

Count chars in a String in Java

Count chars in Strings or letters in words in Java using the Spring framework
import org.springframework.util.StringUtils;

int occurance = StringUtils.countOccurrencesOf("012405802569015014", "0"); //returns 5
int occurance = StringUtils.countOccurrencesOf("hello world", "l"); //returns 3

public by lauhin  4616  11  5  0

Java date to String

this code converts a java date to a String
//this code converts a java date to a string
DateFormat df = new SimpleDateFormat("dd/MM/yyyy");
String reportDate = df.format(today);

public by lauhin  2789  1  5  0

Find tables where certain columns exists

if you need to find all tables where a column name exists, you can search that with this query
//this query will give you all table names in a database where certain column names exists.
select distinct table_name
    from information_schema.columns
    where column_name in ('columnA','ColumnB')
        and table_schema = 'YourDatabase';            

public by lauhin  4904  1  5  0

Interator to stream in Java 8

makes a java 8 stream from an iterator
//this method converts a iterator to a stream. This can only be used in Java 8
public static <T> Stream<T> iteratorToStream(final Iterator<T> iterator, final boolean parallell) {
  Iterable<T> iterable = () -> iterator;
  return, parallell);

//here I show you how to use this method. You need this try arround it so Java will close the stream automatically after using it.
try (Stream<???> stream = Utils.<???>iteratorToStream(anIterator, true)) {

public by lauhin  2076  0  3  0

How to update all outdated homebrew software.

How to update all outdated homebrew software.: update-homebrew
brew update && brew upgrade `brew outdated`